Replace Env Vars Action

A GitHub Action that replaces __TOKENS__ with environment variables in files. Drop-in replacement for falnyr/replace-env-vars-action with safe handling of special characters (|, &, /, \, $, etc.) in values.

Usage

- name: Replace tokens
  uses: sushidev-team/workflow-var-action@master
  with:
    filename: k8/deployment.yml
  env:
    PROJECT: ${{ vars.PROJECT }}
    APP_ENV: ${{ vars.APP_ENV }}
    DB_PASSWORD: ${{ secrets.DB_PASSWORD }}
    API_TOKEN: ${{ secrets.API_TOKEN }}

Given a file with placeholders:

metadata:
  name: __PROJECT__-config-__APP_ENV__
data:
  DB_PASSWORD: __DB_PASSWORD__
  API_TOKEN: "__API_TOKEN__"

The action replaces all __VAR__ patterns with the corresponding environment variable values:

metadata:
  name: myapp-config-stage
data:
  DB_PASSWORD: p@ss|w0rd&special/chars
  API_TOKEN: "token|with|pipes"

Inputs

Name	Required	Description
filename	Yes	Path to the file to process

How it works

• Scans the file for __PLACEHOLDER__ patterns
• Replaces each placeholder with the matching environment variable
• Unmatched placeholders are left untouched
• Uses Node.js string replacement (no sed) so special characters in values are handled safely

Migration from falnyr/replace-env-vars-action

Replace the uses line — everything else stays the same:

- uses: falnyr/replace-env-vars-action@master
+ uses: sushidev-team/workflow-var-action@master

Development

npm install
npm test